Current of air and Harmattan

Current of air noun - Air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure.

Harmattan and current of air are semantically related. In some cases you can replace term "Harmattan" with "Current of air", this terms are similar.

Harmattan noun - A dusty wind from the Sahara that blows toward the western coast of Africa during the winter.

Current of air and harmattan are semantically related. Sometimes you can use "Current of air" instead a noun "Harmattan".